Leg : 65 Top/Bottom Interval(mm): 0/ 850 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 139.35 Core: 10 Top of Core Depth (m) : 129.50 Sect: 7 Top of Section Depth(m): 138.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-10), 2 (12-18), 3 (21-29), 4 (32-35), 5A (38-44), 5B (44-46), 6A (49-55), 6B (49-56), 7A (59-67), 7B (59-65), 7C (65-67), 8 (70-75), 9 (77-85); Texture : PCES(1,2,3) ARE FINE-GRAINED, PCES 4-9 BECOME LIGHTER AND COARSER GRAINED, GENERALLY APHYRIC; Structure : MASSIVE, VEINLETS UP TO 1.5MM FILLED WITH CALCITE AND LATER PYRITE IN PCES(1,2,6), PCES 1 & 2 HAVE 1.5MM FRACTURES BORDERED BY ALTERATION HALOS OF 1CM WITH LOWER PART RICH IN SULFIDES; Alteration : FRESH SOME ALTERATION HALOS; Comments : TOP OF PCE 1 IS OLIVE GREY SILTY CLAY-BASE OF SED SECTION, SOME SULFIDES DISSEMINATED THROUGHOUT ROCK BUT USUALLY AROUND ALTERATION HALOS, CORE IS PART OF LARGER COOLING UNIT, DARK GREY TO LIGHTER DOWN CORE; Vesicles : Size(mm): 0.5-8 Percent: <1 Location: Filling: CALCITE,ZEOLITE Location: Filling: CLAY,PYRITE ID ZEOLITE UNCERTAIN,PYRITE IN UPPERMOST PCES; Phenocrysts: PLAGIOCLASE Size(mm): TO 1 PHENOS VISIBLE IN PCES 1 & 2, ACICULAR PLAG; Replacement: CALCITE ZEOLITE CLAY SULFIDES PYRITE PYRITE DISSEMBLED THROUGHOUT GROUNDMASS; Leg : 65 Top/Bottom Interval(mm): 0/1400 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 138.40 Core: 11 Top of Core Depth (m) : 137.00 Sect: 1 Top of Section Depth(m): 137.00 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-6), 2A (8-12), 2B (11-26), 2C (16-30), 2D (29-37), 2E (38-46), 2F (46-55), 2G (54-60), 3 (62-69), 4 (70-85), 5 (86-92), 6A (94-101), 6B (100-111), 6C (111-117), 7 (118-125), 8 (127-129) 9 (133-142); COARSE GRAINED, APHYRIC; Structure : VEINS OF CALCITE IN PCES(2D-G,4,6) WITH THIN RIMS OF CALCITE ON VEINS, VEIN IN 2F-G ARE 1MM WIDE REST <0.5, MASSIVE; Alteration : FRESH NO MEASURABLE ALTERATION HALOS; Comments : SAME UNIT AS 10-7, GREY; Vesicles : Size(mm): Percent: <1 Location: Filling: SMECTITE,CALCITE SMALL VESTICLES SCATTERED THROUGHOUT MAINLY FILLED WITH SMECTITE AND CENTERS OF CALCITE IN THOSE >0.5MM; Phenocrysts: PLAGIOCLASE ACICULAR PLAG IN PCE 5; Replacement: CALCITE SMECTITE SULFIDE DISSEMINATED SULFIDES THROUGHOUT BUT MAINLY CONCENTRATED AROUND VEINS IN PCES(1,4,6); Leg : 65 Top/Bottom Interval(mm): 0/1460 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 139.96 Core: 11 Top of Core Depth (m) : 137.00 Sect: 2 Top of Section Depth(m): 138.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-4), 2 (7-13), 3 (6-19), 4 (20-33), 5A, (35-47), 5B (47-55), 5C (55-59), 6 (60-70), 7 (71-90), 8 (93-100), 9 (101-114), 10 (116-120), 11 (121-135), 12 (137-146); Texture : FINE GRAINED, APHYRIC; Structure : CALCITE VEINS CONTAINING SOME PYRITE IN PCES(5C,6, 7,8), MASSIVE; Alteration : FRESH; Comments : GREY, SIMILAR TO 10-7 & 11-1; Vesicles : Size(mm): 0.5-2 Percent: 1-2 Location: Filling: CALCITE,ZEOLITE Location: Filling: CLAY CLAY IS GREEN-BLUE, ID ZEOLITE UNCERTAIN; Replacement: CALCITE ZEOLITE ID ZEOLITE UNCERTAIN; CLAY PYRITE MINOR PYRITE DISSEMINATED IN GROUNDMASS; Leg : 65 Top/Bottom Interval(mm): 0/ 340 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 140.34 Core: 11 Top of Core Depth (m) : 137.00 Sect: 3 Top of Section Depth(m): 140.00 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (0-8), 2 (12-23), 3 (25-44); Texture : COARSE GRAINED, APHYRIC; Structure : CALCITE-SMECTITE VEINS PCE 3 AND AT JUNCTION OF PCES 1 & 2; Alteration : FRESH; Comments : LIGHT GREY, SAME AS 10-7,11-1, 11-2; Vesicles : Size(mm): 0.-1.5 Percent: <1 Location: Filling: SMECTITE,CALCITE MECTITE LINED SOME WITH CALCITE CENTRES; Replacement: CALCITE SMECTITE SULFIDE Leg : 65 Top/Bottom Interval(mm): 0/ 400 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 139.40 Core: 12 Top of Core Depth (m) : 139.00 Sect: 1 Top of Section Depth(m): 139.00 LITHOLOGY: SEDIMEMT; SILTY CLAY; Piece No. : PCE 1 (0-4); Comments : OLIVINE GREY, NO SIGNS OF BAKING, NO CHANGE IN GRAIN SIZE OF ADJACENT BASALT; Leg : 65 Top/Bottom Interval(mm): 500/1450 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 140.45 Core: 12 Top of Core Depth (m) : 139.00 Sect: 1 Top of Section Depth(m): 139.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 2 (5-10), 3A (12-15), 3B (15-22), 4 (24-30), 5 (30-38), 6 (42-44), 7A (46-50), 7B (51-54), 8 (55-69), 9 (70-80), 10 (82-93), 11A (94-103), 11B (103-114), 12 (115-122), 13 (124-130), 14 (131-145); Texture : APHYRIC; Structure : PCES 10-14 CALCITE & SMECTITE VEINS, SMECTITE VEINS PCES 2 & 5-14, MASSIVE; Alteration : FRESH PCE 8 IS ALTERED WITH PATCHES OF SMECTITE AND SOME DISSEMINATED SULFIDE; Comments : GREY, PCE 1 IS SEDIMENT; Vesicles : Size(mm): 15-20 Percent: Location: S Filling: MECTITE, SULFIDE PCE 5 HAS 4 VESICLES, PCE 6 HAS SEVERAL SMALL 2-3MM VESICLES, PCE 7 HAS A LARGE 1CM AND SEVERAL SMALL ONES, VESICLE SURROUNDED BY SMECTITE AND DISSEMINATED SULFIDE; Phenocrysts: PLAGIOCLASE SINGLE PLAG PHENO FOUND IN PCE 14; Replacement: SMECTITE SULFIDE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 142.00 Core: 12 Top of Core Depth (m) : 139.00 Sect: 2 Top of Section Depth(m): 140.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; PCES 1A (0-20), 1B (20-38), 2A (40-47), 2B (47-54), 2C (54-59), 3 (61-72), 4 (73-80), 5 (82-91), 6A (95-105), 6B (105-116), 7 (117-121), 8A (123-128), 8B (127-130), 8C (131-138), 9 (140-150); Texture : FINE GRAINED, APHYRIC; Structure : VERY THIN CARBONATE VEINS IN PCES(1A-B, 2A-B, 4-5, & 6B) WITH PCES 5 & 8A-B CONTAINING TRACE PYRITE, MASSIVE; Alteration : FRESH; Comments : GREY, SAME UNIT AS 12-1; Vesicles : Size(mm): TO 0.5 Percent: Location: Filling: CARB, CLAY CLAY NOT CERTAIN, ONLY TRACE VESICLES; Replacement: CARBONATE CLAY CLAY QUESTIONABLE; PYRITE Leg : 65 Top/Bottom Interval(mm): 0/ 300 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 142.30 Core: 12 Top of Core Depth (m) : 139.00 Sect: 3 Top of Section Depth(m): 142.00 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-7), 2 (9-21), 3 (24-29); Texture : APHYRIC; Structure : CALCITE VEINS IN ALL 3 PCES, MASSIVE; Alteration : FRESH; Comments : GREY, SIMILAR TO 12-2; Vesicles : Size(mm): Percent: 0 NO OBVIOUS VESICLES; Size(mm): 0.1-0.3 Percent: <<1 Location: Filling: SMECTITE Shape : ROUND VERY SMALL SMECTITE ROUND AMYGDULES UNDER BINOCULAR SCOPE; Replacement: CALCITE SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/1430 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 145.43 Core: 13 Top of Core Depth (m) : 144.00 Sect: 1 Top of Section Depth(m): 144.00 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-12), 2 (16-22), 3 (23-33), 4 (34-42), 5A (44-55), 5B (54-63), 5C (64-70), 5D (70-76), 5E (77-88), 6A (90-100), 6B (98-109), 6C (109-119), 6D (118-143); Texture : APHYRIC, EQUIGRANULAR; Structure : DISSEMINATED SULFIDE AND CALCITE IN FINE VEINS, MASSIVE; Alteration : FRESH; Comments : CONTINUING FROM CORE 11-3, ORIENTATION UNKNOWN FOR PCE 2; Vesicles : Size(mm): Percent: <0.5 Location: Filling: CALCITE,SMECTITE VESICLES ARE EXTREMELY RARE AND VERY SMALL, ID UNCERTAIN FOR SMECTITE; Replacement: CALCITE SMECTITE SULFIDE Leg : 65 Top/Bottom Interval(mm): 0/1370 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 146.87 Core: 13 Top of Core Depth (m) : 144.00 Sect: 2 Top of Section Depth(m): 145.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-20), 2 (24-26), 3 (30-37), 4 (40-46), 5 (52-57), 6 (60-64), 7 (70-77), 8 (80-82), 9 (84-92), 10 (95-96), 11 (100-106), 12 (108-112), 13 (116-118), 14 (122-127); Texture : FINE GRAINED, APHYRIC, PCE 4 IS FINE GRAINED; Structure : PCE 1 HAS CARBONATE VEIN WITH TRACE PYRITE, MASSIVE; Alteration : FRESH; Comments : GREY, PCE 4 IS TOP OF COOLING UNIT AND FINE GRAINED; Vesicles : Size(mm): 0-0.2 Percent: Location: Filling: CARB,CLAY SMALL VESICLES, CLAY IS BLUE GREY; Replacement: CARBONATE CLAY CLAY IS BLUE GREY; PYRITE ( TR%) ONLY IN CARBONATE VEIN; Leg : 65 Top/Bottom Interval(mm): 0/ 900 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 148.90 Core: 14 Top of Core Depth (m) : 148.00 Sect: 1 Top of Section Depth(m): 148.00 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-5), 2 (7-10), 3A (12-20), 3B (20-26), 3C (26-30), 4 (32-35), 5 (36-41), 6 (43-45), 7 (47-52), 8 (54-61), 9 (63-66), 10 (67-70), 11 (73-77), 12 (80-83), 13 (85-90); Texture : APHYRIC, BECOMES FINE GRAINED PCES 8-13 WITH 13 FINE GRAINED, PCES(8,9,13) HAVE SMALL AND SPARSE GLOMEROPHYRIC CLUSTERS OF PLAG AND CPX(2X1.5MM IN PCES 8 & 9, & 3.5X4.5 IN PCE 13); Structure : CALCITE-SMECTITE VEIN IN PCE 13, MASSIVE; Alteration : FRESH; Comments : INTERPRETED AS TOP OF COOLING UNIT 3(APPEARS TO BE CONTINUATION OF UNIT IN CORE 13), PCE 5 IS FINE- GRAINED-TOP OF COOLING UNIT 4, GREY BUT DARKENS IN COLOR FROM PCES 8-13, SMECTITE AT BASE OF PCE 13; Vesicles : Size(mm): Percent: 0 SULFIDE FILLED VUG IN PCE 1; Phenocrysts: PLAGIOCLASE CLINOPYROXENE Replacement: CALCITE SMECTITE Leg : 65 Top/Bottom Interval(mm): 910/1500 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 149.50 Core: 14 Top of Core Depth (m) : 148.00 Sect: 1 Top of Section Depth(m): 148.91 LITHOLOGY: APHYLIC BASALT; Piece No. : PCES 14 (91-99), 15 (101-106), 16 (110-112), 17 (115-122), 18 (124-126), 19 (132-137), 20 (140-146); Texture : APHYLIC, FINE GRAINED, PCE 14 HAS GLASS ON TOP MARGIN; Structure : SMECTITE COATING ON ALL JOINTS AND FRACTURES EPECIALLY IN PCES 16 & 20; Alteration : FRESH; PCES 16 & 20 VERY ALTERED; Comments : RUBBLY, GREY; Vesicles : Size(mm): Percent: 0 Groundmass : PLAGIOCLASE ACICULAR PLAG; Replacement: SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 151.00 Core: 14 Top of Core Depth (m) : 148.00 Sect: 2 Top of Section Depth(m): 149.50 LITHOLOGY: APHYLIC BASALT; MASSIVE; Piece No. : PCES 1 (0-6), 2 (8-15), 3 (17-20), 4A (25-29), 4B (29-32), 5 (33-40), 6 (42-45), 7 (46-50), 8 (52-57), 9 (59-63), 10 (70-76), 11 (85-90), 12 (93-100), 13 (102-104), 14 (109-115), 15 (125-132), 16 (134-143), 17 (145-147); Texture : APHYRIC, FINE GRAINED, PCE 16 HAS A FRESH GLASS RIND, PCE 1 HAS PLAG-CPX GLOMEROCRYSTS PRESENT AS SMALL CLOTS, PCES(9,10,13,14)-LOOSE FRAGMENTS; Structure : PCES(2,3,9 ETC.) ARE FRACTURE SURFACES COATED BY GREEN SMECTITE, FINE VEINLETS IN LOWEST PART ARE UNFILLED -CALCITE & SILICA RARE, MASSIVE; Alteration : FRESH ALTERED SURFACES LARGELY CONFINED TO THE UPPER COOLING MARGIN IN PCE 1(ALTERED GLASS); Comments : PCE 1 IS BEGINING OF NEW COOLING UNIT; Vesicles : Size(mm): Percent: 0 OR VERY RARE; Groundmass : PLAGIOCLASE CLINOPYROXENE Replacement: CALCITE SILICA IO FOR SILICA UNCERTAIN, CALC & SILICA VERY RARE; Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 152.50 Core: 14 Top of Core Depth (m) : 148.00 Sect: 3 Top of Section Depth(m): 151.00 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (0-7), 2A (9-11), 2B (11-17), 2C (17-20), 3 (21-27), 4 (30-40), 5 (42-60), 6 (60-66), 7 (68-74), 8 (77-82), 9 (83-90), 10 (93-97), 11 (100-116), 12 (108-118), 13 (120-131), 14 (133-137), 15 (140-143), 16 (146-150); Texture : MOTTLING OF CUT SURFACES PROBABLY REPRESENT Piece No. : GROUNDMASS GLOMEROPHYRIC CLOTS OF PLAG-CPX; Structure : PCES ARE FRAGMENTED, JOINT PLANES OFTEN COATED WITH GREEN SMECTITE AND CHALCEDONY(?), FINE VEINS RARELY FILLED BY CALCITE, PCES (3-5,11) HAVE THICK SMECTITE COATINS ON JOINTS; Alteration : FRESH INTERIOR OF JOINTS-PCES(3-5,11) APPEAR TO BE FRESH Comments : LITHOLOGY CONTINUES FROM PREVIOUS CORE SECTION; Groundmass : PLAGIOCLASE ACICULAR PLAG VISIBLE; PYROXENE GLOMEROPHYRIC CLOTS OF PLAG-PYX; Replacement: SMECTITE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/ 900 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 153.40 Core: 14 Top of Core Depth (m) : 148.00 Sect: 4 Top of Section Depth(m): 152.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-6), 2 (10-15), 3 (16-22), 4 (25-29), 5 (31-36), 6 (40-52), 7 (52-57), 8 (60-65), 9 (67-72), 10 (75-80), 11 (84-90); Texture : APHYRIC, SIMILAR O 14-3 BUT COARSER GRAINED, PCE 11 IS SLIGHTLY FINER GRAINED; Structure : CALCITE-SMECTITE VEINS IN PCES(1,5-7), SMECTITE ON JOINTS AND FRACTURE, PCE 9 HAS LARE VUG/VEIN WITH SMALL BRECCIATED BASALT FRAGMENTS INSIDE REST OF FILLING IS MAINLY SMECTITE, MASSIVE; Alteration : FRESH; Comments : GREY, NO OBVIOUS PHENOS OR VESICLES; Vesicles : Size(mm): Percent: 0 PCE 9 HAS LARE VUG/VEIN; Replacement: SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/ 50 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 157.05 Core: 15 Top of Core Depth (m) : 157.00 Sect: 1 Top of Section Depth(m): 157.00 LITHOLOGY: SEDIMENT; OLIVE MUDSTONE; Piece No. : PCE 1 (0-5); Comments : % PROBABLY FALLEN IN FROM SEDIMENTARY SECTION; Leg : 65 Top/Bottom Interval(mm): 700/1140 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 158.14 Core: 15 Top of Core Depth (m) : 157.00 Sect: 1 Top of Section Depth(m): 157.70 LITHOLOGY: APHYRIC BASALT; Piece No. : PCS 2 (7-11), 3 (13-19), RA (21-25), 4B (24-31), 5 (34-39), 6 (40-43), 7 (45-52), 8 (52-56), 9A (60-70), 9B (67-73), 10 (75-80), 11A (82-87), 11B (88-92), 12 (95-101), 13 (103-105), 14A (107-111), 14B (108-114); Texture : MEDIUM TO FINE GRAINED, APHYRIC; Structure : CARBONATE & ZEOLITE(?) AND BLUE-GREEN CLAY(?) ALONG SOME IRREGULAR APPROX. 1MM FRACTURES; Alteration : FRESH; Comments : GREY, SIMILAR BUT FINER-GRAINED THAN 14-4, PROBABLY BASAL PART OF VERY THICK COOLING UNIT; Vesicles : Size(mm): <1 Percent: <1 Location: Filling: CARB/CLAY ID CARB UNCERTAIN; Replacement: CARBONATE ZEOLITE CLAY CLAY IS BLUE-GREEN; Leg : 65 Top/Bottom Interval(mm): 1160/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 158.50 Core: 15 Top of Core Depth (m) : 157.00 Sect: 1 Top of Section Depth(m): 158.16 LITHOLOGY: PLAG PHYRIC BASALT; Piece No. : PCES 15A (116-120), 15B (121-126), 15C (125-130), 15D (131-134), 16 (135-140), 17A (141-147), 17B (146-148), 17C (148-150); Texture : FINE GRAINED, PHYRIC, GREENISH SMECTITE AND SULFIDE POSSIBLY ARE COATING OF HIGHLY ALTERED GLASS RINDS INTERPRETED AS FINE GRAINED TOP SELVAGE TO THICKER UNDERLYING PLAG-PHYRIC COOLING UNIT 9, IN SMALL FRAGMENTS; Structure : SOME GREENISH SMECTITE AND SULFIDE ALONG THIN FRACTURES; Alteration : FRESH; Comments : DARK GREY, INTERPRETED AS THICKER UNDERLYING COOLING UNIT 9; Phenocrysts: PLAGIOCLASE ( <2%) Size(mm): <3 Replacement: SMECTITE GREENISH SULFIDE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 160.00 Core: 15 Top of Core Depth (m) : 157.00 Sect: 2 Top of Section Depth(m): 158.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-10), 2 (12-20), 3 (22-30), 4 (33-41), 5 (43-51), 6 (54-60), 7 (63-70), 8A (73-75), 8B 75-77), 8C (77-82), 8D (84-86), 9 (87-97), 10A (99-102), 10B (102-115), 11A (116-121), 11B (116-120), 11C (122-130), 11D (127-142), 12A (144-145), 12B (146-150), 12C (144-150); Texture : FINE TO MEDIUM GRAINED, BECOMES COARSER DOWN SECTION; Structure : FRACTURES ARE RARE AND THIN WITH CLAY & CARBONATE & ZEOLITE(?) & SOME LATE STAGE SULFIDE, MASSIVE; Alteration : FRESH; Comments : SECTION PROBABLY PART OF THICK COOLING UNIT THAT STARTS IN CORE 15-1 & CONTINUE INTO LOWER SECTIONS LIGHT TO MEDIUM GREY-COLOR BECOMES LIGHTER AND GRAIN COARSER AND VOLUME PERCENTAGE HIGHER (TO CA. 10%, <1MM) DOWNWARDS IN SECTION; Vesicles : Location: Filling: CLAY SECONDARY MINERALS DOMINANTLY BLUISH-GREEN CLAY; Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): < SCATTERED THROUGHOUT UNIT; Replacement: CLAY CARBONATE ZEOLITE ID ZEOLITE UNCERTAIN; SULFIDE LATE STAGE; Leg : 65 Top/Bottom Interval(mm): 0/1400 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 161.40 Core: 15 Top of Core Depth (m) : 157.00 Sect: 3 Top of Section Depth(m): 160.00 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (408), 2 (017), 3 (20-30), 4 (31-45), 5 (46-56), 6 (57-66), 7 (70-77), 8A (81-87), 8B (84-88), 9 (90-103), 10 (105-120), 11A (122-131), 11B (131-140); Texture : MEDIUM GRAINED, SLIGHT INCREASE IN GRAIN SIZE DOWN SECTION; Structure : RARE HARILINE FRACTURES LESS ABUNDANT THAN OVER- LIYING UNIT 15-2, MASSIVE; Alteration : FRESH; Comments : PART OF THICK COOLING UNIT INCLUDING PART OF 15-1, ALL 15-2, AND 15-4, LIGHT GREY; Vesicles : Size(mm): Percent: 5-10 Location: Filling: CLAY Shape : ROUND BECOMELARGER(1-2MM) DOWNWARDS, CLAY IS BLUE GREEN; Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): TO 5 INCREASE IN SIZE DOWNWARDS; Replacement: CLAY Leg : 65 Top/Bottom Interval(mm): 0/1450 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 162.95 Core: 15 Top of Core Depth (m) : 157.00 Sect: 4 Top of Section Depth(m): 161.50 LITHOLOGY: PLAG MOD PHYRIC BASALT; Piece No. : PCES 1A (0-7), 1B (7-20), 2 (23-27), 3A (30-37), 3B (37-44), 3C (44-46), 4 (47-57), 5 (59-66), 6A (70-84), 6B (85-91), 7A (94-97), 7B (98-102), 8 (103-112), A (114-121), 9B (130-144); Texture : MEDIUM GRAINED, PHYRIC,GLOMEROPHYRIC SEGREGATION OF PLAIOCLASE OBSERVED SOMEWHERE (PCE 6A); Structure : FRACTURES RARE AND THIN IN PCES(5,6,9) & FILLED WITH LIGHT GREY MATERIAL(CLAY MINERALS?) WHICH CONTAIN TRACE PYRITE; Alteration : FRESH; Comments : SAME COOLING UNIT AS 15-3, LIGHT GREY; Vesicles : Size(mm): 0.5-0.2 Percent: 5-10 Location: Filling: CLAY,VOLCANIC Location: Filling: GLASS GRAY-GREEN GRAY-BLUE MATERIAL AND VOLCANIC GLASS- ID UNCERTAIN; Phenocrysts: PLAGIOCLASE ( 3-5%) Size(mm): 1-3 Replacement: PYRITE CLAY NOT CERTAINCLAY; Leg : 65 Top/Bottom Interval(mm): 0/ 660 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 163.66 Core: 15 Top of Core Depth (m) : 157.00 Sect: 5 Top of Section Depth(m): 163.00 LITHOLOGY: PLAG MOD PHYRIC BASALT; Piece No. : PCES 1A (0-4), 1B (6-12), 2A (14-19), 2B (20-26), 3(30-66); Texture : MEDIUM GRAINED, MOD PHYRIC; Alteration : FRESH; Comments : LIGHT GREY, LOWER PART OF COOLING UNIT BEGINING WITH BASE OF 15-1 THRU 15-5, BASAL PART IN SMALL BROKEN PIECES; Vesicles : Size(mm): TO 2 Percent: <10 Location: Filling: CLAY Shape : ROUND SMALLER ONES FILLED WITH DARK GREEN CLAY, LARGER WITH DARK CLAY RIM CENTRE LIGHT COLORED CLAY WITH SHRINKAGE CRACKS; Phenocrysts: PLAGIOCLASE ( <5%) Size(mm): <5 Replacement: CLAY Leg : 65 Top/Bottom Interval(mm): 0/1450 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 167.45 Core: 16 Top of Core Depth (m) : 166.00 Sect: 1 Top of Section Depth(m): 166.00 LITHOLOGY: PLAG MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1A (2-9), 1B (10-14), 2 (17-24), 3A (27-34), 3B (35-40), 4 (42-50), 5 (52-60), 6A (71-84), 6B (82-90), 7 (92-102), 8 (104-110), 9 (114-122), 10 (125-131), 11 (134-136), 12 (140-145); Texture : MEDIUM GRAINED, PHYRIC, PCES 1A-B WITH GLASSY (SOMEWHAT ALTERED) CHILLED RINDS(1-2MM THICK); Structure : RARE HAIRLINE FRACTURES, MASSIVE; Alteration : FRESH; Comments : LIGHT GREY, PROBABLY PART OF NEW COOLING UNIT, PETRORAPHICALLY SIMILAR TO OVERLYING COOLING UNIT (15-1 TO 15-5); Vesicles : Size(mm): <1 Percent: <5 Location: Filling: CLAY Phenocrysts: PLAGIOCLASE ( <5%) Size(mm): <5 SOME GLOMEROCRYSTS MOSTLY PLAG, SOME CPX(?); Replacement: CLAY CLAY VARIES FROM DARKGREEN TO LIGHT; Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 169.00 Core: 16 Top of Core Depth (m) : 166.00 Sect: 2 Top of Section Depth(m): 167.50 LITHOLOGY: PLAG MOD PHYRIC BASALT; Piece No. : PCES 1 (5-15), 2 (17-29), 3A (32-36), 3B (33-44), 3C (45-57), 4A (60-71), 4B (72-80), 5 (82-105), 6 (107-121), 7 (125-131), 8 (133-147); Texture : MOD PHYRIC, MEDIUM GRAINED, PLAG & CPX GLOMEROPHYRIC SEGREGATION OBSERVED IN PCES(4A-B,5); Structure : FRACTURES IN PCES(1,2,8) NOT SO RARE & THIN FILLED WITH CLAY; Alteration : FRESH; Comments : ALL SAMPLES SAME AS 16-1, LIGHT GREY; Vesicles : Size(mm): .5 TO 2 Percent: <5 Location: Filling: CLAY, CARBONATE Phenocrysts: PLAGIOCLASE ( 3-5%) Size(mm): 1-5 Replacement: CLAY CARBONATE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 169.00 Core: 16 Top of Core Depth (m) : 166.00 Sect: 2 Top of Section Depth(m): 167.50 LITHOLOGY: PLAG MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES A (2-13), 1B (12-16), 1C (17-25), 2A (28-35), 2B (36-48), 3A (60-65), 3B (36-38), 4A (72-85), 4B (84-90), 5 (91-98), 6A (102-104), 6B (104-106), 7A (107-135), 7B (132-137), 8 (138-150); Texture : MOD PHYRIC; Structure : SMECTITE COATINGS ON FRACTURES AND JOINTS PCE 2 HAS WIDER VEIN(0.3MM DOWN CENTRE), MASSIVE; Alteration : FRESH; Comments : ALL SAMPLES SIMILA TO 16-1 & 16-2, LIGHT GREY; Vesicles : Size(mm): 1-2 Percent: <<1 Location: Filling: SMECTITE Phenocrysts: PLAGIOCLASE ( <5%) Replacement: SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 172.00 Core: 16 Top of Core Depth (m) : 166.00 Sect: 4 Top of Section Depth(m): 170.50 LITHOLOGY: PLAG MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (1-15), 2 (17-34), 3 (37-54), 4 (57-63), 5 (65-70), 6 (73-80), 7 (83-97), 8A (100-111), 8B (110-125), 8C (125-136), 8D (136-149); Texture : MOD PHYRIC, MEDIUM GRAINED; Structure : VEINLETS OF CARBONATE PRESENT BUT RARE, MASSIVE; Alteration : FRESH SOME FAINT SMECTITE PATCHES IN GROUNDMASS; Comments : CONTINUOUS FROM PREVIOUS CORE SECTION; Vesicles : Size(mm): <1 Percent: 1 Location: Filling: CARBONATE RARE; Phenocrysts: PLAGIOCLASE ( <5%) Size(mm): 1 CLINOPYROXENE CCASIONAL GLOMEROCRYSTS OF PLAG & CPX; Groundmass : OTHER SOME GLASSY &/OR-CPX RICH ZONES IN PCE 6; Replacement: CARBONATE SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/ 780 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 172.78 Core: 16 Top of Core Depth (m) : 166.00 Sect: 5 Top of Section Depth(m): 172.00 LITHOLOGY: PLAG MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-9), 2 (11-15), 3 (17-23), 4 (25-30), 5 (32-47), 6 (50-59), 7 (61-66), 8 (68-78); Texture : MOD PHYRIC, SLIGHTLY COARSER GRAINED THAN 16-4; Structure : SOME SMECTITE COATING ON JOINTS AND FRACTURES, MASSIVE; Alteration : FRESH; Comments : VERY SIMILAR TO 16-4; Vesicles : Size(mm): Percent: 0 Phenocrysts: PLAGIOCLASE ( <5%) Size(mm): <5 Replacement: SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 176.50 Core: 17 Top of Core Depth (m) : 175.00 Sect: 1 Top of Section Depth(m): 175.00 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (1-10), 2 (11-16), 3 (19-27), 4A (28-38), 4B (28-40), 4C (41-42), 4D (42-47), 4E (47-55), 5 (57-63), 6 (64-75), 7A (76-78), 7B (77-90), 8 (92-104), 9 (105-120), 10 (121-125), 11 (127-136), 12A (133-137), 12B (137-140), 13 (142-147); Texture : SPARSELY PHYRIC; Structure : SMECTITE VEINS ON JOINTS AND FRACTURES, CALCITE- SMECTITE VEINS IN PCE 6, MASSIVE; Alteration : FRESH; Comments : LIGHT GREY, SIMILAR TO 16-5; Vesicles : Size(mm): Percent: 0 Phenocrysts: ( <<3%) Size(mm): TO 4 Replacement: SMECTITE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 178.00 Core: 17 Top of Core Depth (m) : 175.00 Sect: 2 Top of Section Depth(m): 176.50 LITHOLOGY: PLAG MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-9), 2 (11-18), 3 (20-36), 4 (42-60), 5 (62-69), 6 (70-75), 7 (76-80), 8 (83-89), 9 (91-108), 10 (110-115), 11 (117-121), 12 (123-127), 13 (131-147); Texture : MOD PHYRIC, PCE 2 HAS GLOMEROPHYRIC(?) CLOTS, SOME PCES SEEM TO HAVE MORE OR FRESHER GLASS IN MESOSTASIS; Structure : LITTLE OR NO CALCITE VEINING, SEVERAL FRACTURES COATED BY GREEN SMECTITE, MASSIVE; Alteration : FRESH; Comments : CONTINUED FROM PREVIOUS SECTION; Vesicles : Size(mm): Percent: 2 Phenocrysts: PLAGIOCLASE ( 1-3%) Size(mm): 1-2 VARIABLE DISTRIBUTION, IN PCE 2 MAY BE GLOMEROPHYRIC CLOTS; Replacement: CALCITE SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/ 50 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 184.05 Core: 18 Top of Core Depth (m) : 184.00 Sect: 1 Top of Section Depth(m): 184.00 LITHOLOGY: SEDIMENT; Piece No. : PCE A (0-6); Leg : 65 Top/Bottom Interval(mm): 800/1400 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 185.40 Core: 18 Top of Core Depth (m) : 184.00 Sect: 1 Top of Section Depth(m): 184.80 LITHOLOGY: GLASSY BASALT; Piece No. : PCE 2 (8-14); Texture : FINE GRAINED, GLASSY, COOLING MARGIN; Alteration : FRESH SULFIDE COATING ON EDGE; Vesicles : Size(mm): 10X3 Percent: Location: CAL Filling: CITE, SULFIDE AMYGDULES; Replacement: CALCITE SULFIDE SULFIDE IS DISSEMINATED; Leg : 65 Top/Bottom Interval(mm): 1400/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 185.50 Core: 18 Top of Core Depth (m) : 184.00 Sect: 1 Top of Section Depth(m): 185.40 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; Piece No. : PCES 3 (15-29), 4 (30-45), 5 (38-46), 6 (47-58), 7 (60-63), 8 (65-71), 9 (74-80), 10 (84-87), 11 (90-98), 12 (100-105), 13 (105-107), 14 (110-115), 15 (118-125), 16 (127-135), 17 (135-140), 18 (144-150); Texture : SPARSELY PHYRIC, GROUNDMASS BECOMES COARSER DOWN FROM COOLING MARGIN; Alteration : FRESH; Vesicles : Size(mm): Percent: <.5 VESICLES VERY SMALL AND SPARSE; Phenocrysts: PLAGIOCLASE ( 2%) Size(mm): 1-2 Leg : 65 Top/Bottom Interval(mm): 0/1080 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 186.58 Core: 18 Top of Core Depth (m) : 184.00 Sect: 2 Top of Section Depth(m): 185.50 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-5), 2 (7-13), 3 (15-20), 4 (22-26), 5 (27-32), 6 (34-40), 7 (42-57), 8 (60-73), 9 (74-77), 10 (80-92), 11 (94-102), 12 (103-107); Texture : SPARSELY PHYRIC; Structure : SMECTITE-CALCITE VEINS IN PCES 8-9, MASSIVE; Alteration : FRESH; Comments : GREY, DARKER IN COLOR THAN BASALT IN CORE 17; Vesicles : Size(mm): .5-.1-.2 Percent: Location: Filling: SMECTITE PCES 1-6 VESICULAR, AMYGDULES DECREASE IN SIZE AND ABUNDANCE FROM PCE 1 TO PCE 6; Phenocrysts: PLAGIOCLASE ( 1-3%) Replacement: SMECTITE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/ 400 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 193.40 Core: 19 Top of Core Depth (m) : 193.00 Sect: 1 Top of Section Depth(m): 193.00 LITHOLOGY: APHYRIC BASALT FRAGMENT; Piece No. : PCE 1 (2-4); Texture : QUENCHED, GLASSY, APHYRIC, FRAGMENT; Alteration : FRESH; Comments : PROBABLY CHILLED MARGIN FROM UNIT IN PREVIOUS CORE SECTION; Leg : 65 Top/Bottom Interval(mm): 50/ 200 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 193.20 Core: 19 Top of Core Depth (m) : 193.00 Sect: 1 Top of Section Depth(m): 193.05 LITHOLOGY: SEDIMENT; Piece No. : PCES 2 (6-10), 3 (12-18); Leg : 65 Top/Bottom Interval(mm): 200/ 220 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 193.22 Core: 19 Top of Core Depth (m) : 193.00 Sect: 1 Top of Section Depth(m): 193.20 LITHOLOGY: BASALT FRAGMENT; Piece No. : PCE 4 (20-21); Texture : SMALL FRAGMENT; Alteration : FRESH; Leg : 65 Top/Bottom Interval(mm): 250/ 600 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 193.60 Core: 19 Top of Core Depth (m) : 193.00 Sect: 1 Top of Section Depth(m): 193.25 LITHOLOGY: SEDIMENT FRAGMENT; Piece No. : PCE 5 (25-60); Leg : 65 Top/Bottom Interval(mm): 600/1500 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 194.50 Core: 19 Top of Core Depth (m) : 193.00 Sect: 1 Top of Section Depth(m): 193.60 LITHOLOGY: PLAG MOD PHYRIC BASALT; Piece No. : PCES 6 (62-70), 7 (71-80), 8 (83-86), 9 (87-100), 10 (104-113), 11 (113-125), 12 (127-138), 13 (140-144), 14 (145-150); Texture : PCES 7-14 HAVE INCREASING GRAIN SIZE, QUENCHED, GLASSY; Structure : SULFIDE DEPOSITED IN CRACKS, FRACTURES, FEW FINE CALCITE VEINS; Alteration : FRESH; Comments : PCE 7-14 ARE SIMILAR TO PCE 6 BUT WITH INCREASING GRAIN SIZE, PCE 6 DOWNWARDS REPRESENTS A NEW COOLING UNIT; Phenocrysts: PLAGIOCLASE ( 3-5%) Replacement: SULFIDE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 199.00 Core: 20 Top of Core Depth (m) : 197.50 Sect: 1 Top of Section Depth(m): 197.50 LITHOLOGY: PLAG MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-5), 2 (6-20), 3A (21-26), 3B (26-33), 4 (35-45), 5 (47-55), 6 (56-62), 7 (64-68), 8 (71-76), 9 (77-86), 10 (87-94), 11 (96-110), 12 (114-117), 13 (120-129), 14 (131-150); Texture : MOD PHYRIC, PCES 1-9 MAY HAVE ALTERED GROUNDMASS GLASS PATCHES?; Structure : VEINLETS DECREASE IN SULFIDE DOWNWARDS, SOME SMALL BROKEN PCES HAVE SLICKENSIDED SURFACES MASSIVE; Alteration : SLIGHTLY ROCK BECOMES FRESHER DOWNWARDS BY BECOMING LIGHTER IN COLOR LOSING THE MOTTLED TEXTURE COMMON IN PCES 1-9(ALTERED GROUNDMASS GLASS PATCHES?) AND DECREASE OF SULFIDE IN VEINLETS AND GROUNDMASS, SMALL BROKEN PCES ARE MORE ALTERED THAN MASSIVE BASALT BY SHOWING GREENISH-YELLOW COATING DULL LUSTER ABUNDANT SULFIDE AND SOME HAVE SLICKENSIDED SMECTITE(?) SURFACES; Comments : DARK GREY, SIMILAR TO 19-1; Vesicles : Size(mm): Percent: <<1 Location: Filling: CLAY VESICLES ARE <<1% EXCEPT PCE 4 WHICH HAS UP TO 5% NEAR TOP, FILLING IS DARK GREEN CLAY AT RIM BECOMING VERY LIGHT IN CENTRE; Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): <5 Groundmass : GLASS ALTERED GROUNDMASS GLASS PATCHES?; Replacement: SULFIDE CLAY DARK GREEN CLAY BECOMING LIGHTER TOWARDS CENTRE; SMECTITE ID SMECTITE UNCERTAIN, AT SLICKENSIDED SURFACES; CARBONATE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 200.50 Core: 20 Top of Core Depth (m) : 197.50 Sect: 2 Top of Section Depth(m): 199.00 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; Piece No. : PCES 1 (2-13), 2 (15-28), 3 (30-41), 4 (44-51), 5 (55-69), 6 (72-82), 7A (84-87), 7B (88-95), 8 (97-113), 9 (116-125), 10 (126-140), 11 (141-150); Texture : MEDIUM TO FINE GRAINED WITH PCES(7A,B) MORE FINE GRAINED, SOME GLOMEROCRYSTS; Structure : SLIGHT INCREASE IN FRACTURING, GREEN SMECTITE(?) IN MANY PCES SLICKENSIDED FILLING VEINLETS GENERALLY IN CENTRE; Alteration : SLIGHTLY SLIGHT INCREASE IN ALTERATION; Comments : DARK TO MEDIUM GREY, CONTINUATION FROM 20.1, PCE(7A- B) POSSIBLY TOP OF NEW COOLING UNIT OF SIMILAR LITHOLOGY; Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): <5 Replacement: SMECTITE GREEN WITH WAXY LUSTER, PERVASIVE IN GROUNDMASS; SULFIDE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 202.00 Core: 20 Top of Core Depth (m) : 197.50 Sect: 3 Top of Section Depth(m): 200.50 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (0-9), 2 (11-20), 3 (22-28), 4 (29-40), 5 (42-53), 6 (55-84), 7 (85-92), 8 (94-100), 9 (104-110), 10 (114-119), 11 (120-127), 12 (130-135), 13 (137-150); Texture : FINE TO MEDIUM GRAINED WITH PCES 8-13 MORE FINE GRAINED; Structure : FRACTURES VERY COMMON IN SOME PCES(7) FILLED CHEIFLY WITH GREEN SLICKENSIDED SMECTITE(?), MANY PCES IN 6 BREAK EASILY WITH CLAY AND SULFIDE ALONG FRACTURES, RARE CARBONATE ALONG HAIRLINE FRACTURES, MASSIVE; Alteration : SLIGHTLY MOTTLED TEXTURE DOMINANT IN PCES 1-7(ALTERED PATCHES OF GROUNDMASS GLASS?); Comments : GREY, SIMILAR LITHOLOY TO PREVIOUS UNITS WITH AT LEAST ONE POSSIBLE COOLING BREAK, PCE 12 VERY FINE GRAINED (NEW COOLING UNIT?); Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): <5 Replacement: SMECTITE ID SMECTITE UNCERTAIN AND GREEN SLICKENSIDED; CLAY SULFIDE CARBONATE RARE; Leg : 65 Top/Bottom Interval(mm): 0/ 50 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 202.05 Core: 21 Top of Core Depth (m) : 202.00 Sect: 1 Top of Section Depth(m): 202.00 LITHOLOGY: SEDIMENT; Piece No. : PCE 1 (2-4); Leg : 65 Top/Bottom Interval(mm): 70/1500 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 203.50 Core: 21 Top of Core Depth (m) : 202.00 Sect: 1 Top of Section Depth(m): 202.07 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 2 (7-9), 3A (11-20), 3B (20-27), 4 (30-38), 5 (41-44), 6 (46-50), 7 (52-58), 8 (60-66), 9 (68-74), 10 (75-80), 11 (82-89), 12 (91-100), 13 (100-106), 14 (109-133), 15 (115-212), 16A (123-131), 16B (130-14), 16C (145-148); Texture : FINE GRAINED, SPARSELY PHYRIC; Structure : FRACTURES FILLED WITH GREENISH DARK MATERIAL(SMEC & ZEOLITE?) ARE VERY COMMON IN PCES 3-8 & 16, MASSIVE; Alteration : FRESH; Vesicles : Size(mm): Percent: 0 Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): 1-4 Replacement: SMECTITE ZEOLITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 205.00 Core: 21 Top of Core Depth (m) : 202.00 Sect: 2 Top of Section Depth(m): 203.50 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-6), 2 (9-16), 3 (18-35), 4A (37-50), 4B (50-56), 5A (57-66), 5B (65-74), 6A (75-80), 6B (80-86), 6C (87-92), 6D (93-98), 6E (100-105), 7 (107-115), 8 (106-125), 9 (127-132), 10 (134-142), 11 (145-150); Texture : MEDIUM GRAINED, SPARSELY PHYRIC; Structure : SOME HAIRLINE FRACTURES GENERALLY FILLED WITH SMECT CARB & SULFIDE, VEINLET 1-2MM THICK IN CENTRE OF PCES 6C-D MOSTLY SILICA(?) FILLED WITH SOME CARB & SMECTITE, MASSIVE; Alteration : FRESH APPEARS FRESHER THAN CORE 20; Comments : GREY, SECTION CONTINUES FROM 21-1 BUT IS SLIGHTLY COARSER GRAINED AND CONTINUES INTO 21-3; Vesicles : Size(mm): <.5 Percent: <10 Location: Filling: SMECTITE Shape : ROUND TO Location: Filling: Shape : IRREGULAR ID GREEN SMECTITE UNCERTAIN; Phenocrysts: ( <3%) Size(mm): <5 Replacement: SMECTITE CARBONATE SILICA SULFIDE Leg : 65 Top/Bottom Interval(mm): 0/ 500 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 205.50 Core: 21 Top of Core Depth (m) : 202.00 Sect: 3 Top of Section Depth(m): 205.00 LITHOLOGY: PLAG SPARSELY PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-5), 2 (8-15), 3 (18-21), 4 (25-47); Texture : MEDIUM GRAINED, SPARSELY PHYRIC; Structure : FRACTURES VERY RARE AND FILLED WITH GREENISH DARK MATERIAL (SMECTITE & ZEOLITE?); Alteration : FRESH; Comments : SAMPLES SAME AS 21-2, GREY; Phenocrysts: PLAGIOCLASE ( 1%) Size(mm): TO 3-4 Replacement: SMECTITE ZEOLITE ID UNCERTAIN OF SMECTITE AND ZEOLITE; Leg : 65 Top/Bottom Interval(mm): 520/1370 Analyst: Zolotarev, B. Hole: 482B Sample Midpoint (m) : 206.37 Core: 21 Top of Core Depth (m) : 202.00 Sect: 3 Top of Section Depth(m): 205.52 LITHOLOGY: PLAG-CPX MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 5 (52-57), 6 (59-62), 7 (64-70), 8 (73-82), 9 (79-85), 10 (87-94), 11A (96-105), 11B (105-107), 12 (111-117), 13 (120-126), 14 (130-137); Texture : FINE GRAINED, SPARSELY PHYRIC, PCE 5 IS VERY FINE GRAINED WITH PCE 6 A LITTLE COARSER; Structure : PCES 7-14 FEW THIN FRACTURES FILLED WITH CLAY MINERALS, MASSIVE; Alteration : FRESH; Comments : PCE 5 POSSIBLY TOP OF NEW COOLING UNIT OF SIMILAR LITHOLOGY; Vesicles : Size(mm): Percent: <.5 PCES 5 & 6, FILLED WITH DARK MATERIAL; Phenocrysts: PLAGIOCLASE ( 2-5%) Size(mm): 1.5-4 PCES 5 & 6 2-3% UP TO 1.5MM AND PCES 7-14 5% WITH SIZES UP TO 3-4MM; CLINOPYROXENE ( <<1%) Size(mm): 1-1.5 PCES 7-14 UP TO 1.5MM; Replacement: CLAY Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Schmincke, H. Hole: 482B Sample Midpoint (m) : 203.50 Core: 21 Top of Core Depth (m) : 202.00 Sect: 1 Top of Section Depth(m): 202.00 LITHOLOGY: PLAG-CPX MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-10), 2A (12-20), 2B (20-25), 3 (28-34), 4 (35-45), 5 (47-55), 6 (56-65), 7A (66-77), 7B (78-88), 7C (89-95), 8 (97-105), 9 (108-115), 10A (117-123), 10B (124-130), 11 (133-130), 12 (142-150); Texture : FINE TO MEDIUM GRAINED WITH GRAIN SIZE DECREASING SLIGHTLY DOWNWARDS IN SECTION; Structure : HAIRLINE FRACTURES HAVE ONLY A THIN SMECTITE(?) COATING, CLAY FROM SOME VEINS ARE IN A SEPARATE VIAL, MASSIVE; Alteration : FRESH VERY; Comments : GREY; Vesicles : Size(mm): 0.3 Percent: <5 Location: Filling: SMECTITE Shape : ROUND SMALL ROUND MAY BE SMECTITE-FILLED BELOW PCE 4; Phenocrysts: PLAGIOCLASE ( <5%) Size(mm): <5 CLINOPYROXENE Size(mm): <<1 RARE GREEN TRANSLUSCENT CPX PHENOS; Replacement: CLAY SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 214.00 Core: 22 Top of Core Depth (m) : 211.00 Sect: 2 Top of Section Depth(m): 212.50 LITHOLOGY: PLAG-CPX-OL MOD PHYRIC BASALT; Piece No. : PCES 1 (2-10), 2 (11-15), 3 (18-27), 4 (28-27), 5 (40-50), 6 (51-61), 7A (64-74), 7B (74-76), 8 (78-84), 9 (85-90), 10 (92-100), 11 (101-107), 12 (109-114), 13 (117-128), 14 (130-136), 15 (138-142); Texture : FINE TO MEDIUM GRAINED, PHYRIC; Structure : CLAY COATING ON VEINS ESPECIALLY IN PCES(3,6,7,13) 1-2MM WIDE, HARILINE FRACURES SOME WITH CLAY COATING AND CLAYS HAVE POSSIBLE SLICKENSIDES; Alteration : FRESH OL SLIGHTLY ALTERED, CLAYS ARE GREEN SMECTITES SOME WITH OXIDIZED AREAS(?); Comments : GREY, COMBINATION OF UNIT IN 22-1; Vesicles : Size(mm): Percent: 0 NONE OBVIOUS; Phenocrysts: PLAGIOCLASE ( <5%) Size(mm): <5 SLIGHTLY MORE IN UPPER PART SECTION; ( <1%) VERY RARE; OLIVINE ( <1%) SMALL GREEN PATCHES COULD BE MICROPHENOS; Replacement: SMECTITE GREEN SMECTITES SOME WITH OXIDIZED AREAS WITH BROWN SMECTITES; Leg : 65 Top/Bottom Interval(mm): 0/1500 Analyst: Morrison, M. Ann Hole: 482B Sample Midpoint (m) : 215.50 Core: 22 Top of Core Depth (m) : 211.00 Sect: 3 Top of Section Depth(m): 214.00 LITHOLOGY: PLAG-PYX-OL MOD PHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (2-6), 2 (8-12), 3 (15-20), 4 (22-30), 5 (31-36), 6 (37-44), 7 (46-5), 8 (60-67), 9 (67-78), 10 (80-83), 11 (85-92), 12 (94-107), 13 (110-115), 14 (119-125), 15 (127-135), 16 (137-146); Texture : PHYRIC, PYX & PLAG SOME IN GLOMEROPHYRIC CLUSTERS; Structure : THIN SMECTITE COATED VEINS(NOT AS MANY AS 22-2), MASSIVE; Alteration : FRESH; Comments : GREY, CONTINUATION OF UNIT 22-2 BUT RICHER IN GREEN PYX & SMALL OL; Phenocrysts: PLAGIOCLASE ( 5-10%) PYROXENE ( 1-2%) Size(mm): TO 2 OLIVINE SMALL; Replacement: SMECTITE Leg : 65 Top/Bottom Interval(mm): 0/1150 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 216.65 Core: 22 Top of Core Depth (m) : 211.00 Sect: 4 Top of Section Depth(m): 215.50 LITHOLOGY: PLAG-OL-CPX MOD PHYRIC BASALT; Piece No. : PCES 1 (1-13), 2 (16-25), 3 (28-39),4 (40-46), 5A (49-63), 5B (64-69), 6 (71-85), 7 (86-97), 8 (98-107), 9 (110-115); Texture : PHYRIC, CPX IN GLOMEROPHYRIC CLOTS WITH PLAG IN PCES 1-6, GROUNDMASS GETS COARSER & SEEMS TO CONTINUE DOW IN SECTION EXCEPT FOR PCE 9-FINER GRAINED; Structure : PCE 9 SHOWS FRACTURE SURFACE GENERALLY COATED WITH GREEN SMECTITE, SULFIDE/AMORPHOUS SILICA, CALCITE; Alteration : FRESH PCE 9 IS ALTERED; Comments : LITHOLOGY CONTINUOUS INCREASINGLY PHYRIC WITHOUT ANY DEFINITE LITHOLOGIC BREAK OR COOLING MARGIN; Phenocrysts: COMBINATION ( 5-10%) Size(mm): 1-2 ( ATHS%) Size(mm): IN PCES 1- ( WITH%) Size(mm): CPX, PLAG OLIVINE ( 1-3 %) Size(mm): <1 APPEARS APPARENTLY IN LOCALIZED PATCHES AS MICROPHENOS IN PCE 1-6; CLINOPYROXENE GLOMEROPHYRIC CLOTS WITH PLAG; Replacement: SMECTITE SULFIDE SILICA AMORPHOUS; CALCITE Leg : 65 Top/Bottom Interval(mm): 0/ 300 Analyst: Hole: 482B Sample Midpoint (m) : 220.30 Core: 23 Top of Core Depth (m) : 220.00 Sect: 1 Top of Section Depth(m): 220.00 LITHOLOGY: APHYRIC BASALT; Piece No. : PCES 1 (3-6), 2 (12-17), 3 (23-30); Texture : APHYRIC, SMALL GLOMEROPHYRIC CLUSTERS (1MM) WITH PLAG & PYX VISIBLE, FINER-GRAINED THAN 22-4; Structure : HAIRLINE FRACTURES WITH SMECTITE COATINGS; Alteration : FRESH; Comments : GREY; Phenocrysts: PLAGIOCLASE ( <1%) Size(mm): 2 RARE PLAG PHENOS IN PCE 2; Leg : 65 Top/Bottom Interval(mm): 0/ 250 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 224.75 Core: 24 Top of Core Depth (m) : 224.50 Sect: 1 Top of Section Depth(m): 224.50 LITHOLOGY: SEDIMENT; Piece No. : PCE 1 (1-24); Leg : 65 Top/Bottom Interval(mm): 250/1400 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 225.90 Core: 24 Top of Core Depth (m) : 224.50 Sect: 1 Top of Section Depth(m): 224.75 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 2 (25-29), 3A (30-49), 3B (47-59), 4 (60-64), 5A (76-97), 5B (97-103), 6 (105-118), 7 (120-135); Texture : PCE 2 IS FINE GRAINED, GLASSY(?), PCES 2-7 ARE PHYRIC, ACICULAR PLAG IN GROUNDMASS; Structure : FRACTURE SURFACES COATED WITH SMECTITE & CALCITE, SOME UNFILLED HAIRLINE CRACKS, MASSIVE; Alteration : FRESH; Comments : PCE 2 COULD BE TOP OF NEW COOLING UNIT; Vesicles : Size(mm): Percent: <.5 Location: 1-5 Filling: SMECTITE AMYGDULES FILLED WITH GREEN SMECTITE WITH INCREASE IN CONCENTRATION DOWNCORE; Groundmass : PLAGIOCLASE ACICULAR; Replacement: SMECTITE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/1450 Analyst: Flower, M. Hole: 482B Sample Midpoint (m) : 227.45 Core: 24 Top of Core Depth (m) : 224.50 Sect: 2 Top of Section Depth(m): 226.00 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (1-50), 2 (32-37), 3 (42-48), 4 (51-55), 5A (57-64), 5B (56-67), 6 (69-75), 7 (76-81), 8 (82-87), 9 (88-95), 10 (98-102), 11A (104-116), 11B (115-124), 11C (123-129), 12 (130-137), 13 (140-145); Texture : APHYRIC, PCE 1 ODD FRAGMENTS COATED BY SMECTITE; Structure : MASSIVE; Alteration : FRESH; Comments : LITHOLOGY CONTINUED FROM PREVIOUS CORE SECTION, DARK GREY; Vesicles : Size(mm): TO 5 Percent: Location: Filling: SMECTITE,CALCITE SPORADIC LARGE VESICLES WITH PCE 10 & 13 LINED WITH SMECTITE AND PCE 9 CALCITE; Replacement: SMECTITE CALCITE Leg : 65 Top/Bottom Interval(mm): 0/1300 Analyst: Hole: 482B Sample Midpoint (m) : 228.80 Core: 24 Top of Core Depth (m) : 224.50 Sect: 3 Top of Section Depth(m): 227.50 LITHOLOGY: APHYRIC BASALT; MASSIVE; Piece No. : PCES 1 (3-13), 2 (15-16), 3A (28-41), 3B (40-45), 4 (47-60), 5 (60-75), 6 (76-90), 7 (93-107), 8 (107-120), 9A (121-127), 9B (124-130); Texture : APHYRIC, FINE GRAINED; Structure : SMECTITE VEINS 2MM WIDE IN PCES 9A, MASSIVE; Alteration : FRESH THIN 1MM ALTERATION HALO IN PCE 9A; Comments : GREY, SIMILAR IN APPEARANCE TO 24-1 & 24-2; Vesicles : Size(mm): Percent: 1-2 Location: Filling: SMECTITE PCES(1,5,7,8) HAVE O.6MM VESICLES; Replacement: SMECTITE |
Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]
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